Home / 20,759.70-28,618.71-12,796.62

Finding the Fourth Proportional to 20,759.70, 28,618.71 and 12,796.62

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Solution

The fourth proportional to 20,759.70, 28,618.71 and 12,796.62 is: 17,641.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,759.70 : 28,618.71 = 12,796.62 : x
  2. Step 2: Convert to fraction form
    20,759.70/28,618.71 = 12,796.62/x
  3. Step 3: Cross multiply
    20,759.70x = 28,618.71 × 12,796.62
  4. Step 4: Simplify right side
    20,759.70x = 366,222,756.76
  5. Step 5: Solve for x
    x = 366,222,756.76/20,759.70
  6. Step 6: Final answer
    x = 17,641.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.